Kinescope anode connector

ABSTRACT

A connector has a body with a means for receiving a wire. Operatively connected to the body is a means for disposing the wire adjacent a receptacle and a means for resiliently urging the wire into a direct engagement with the receptacle without using any intervening conducting elements. The body can be made in two sections, and the disposing and bias means can be lugs integrally formed with one of the sections.

iiiie @iit'erman ei ai.

[ 1 May 22, R973 KTNESCOPE ANODE CONNECTOR [75] Inventors: SeymourOfierman, New York, N.Y.; Robert B. Pittman, River Edge,N.J.

[73] Assignee: industrial Electronic Corp, New York, NY.

22 Filed: Oct.22,197l

21 Appl.No.: 191,608

Hardware [52] US. Cl. ..339/91 R, 339/244 R, 339/258 TC [51] lint. C11...H01r 13/54 [58] Field of Search ..339/l7 C, 91, 244,

[56] References Cited UNITED STATES PATENTS 3,341,806 9/1967 Joachim..339/l7 C 6/1966 Martin ..339/258 TC 3,267,412 8/1966 Rosenberg et a1..339/258 TC Primary ExaminerJoseph H. McGlynn Attorney-Maxwell James eta1.

[ STRACT A connector has a body with a means for receiving a wire.Operatively connected to the body is a means for disposing the wireadjacent a receptacle and a means for resiliently urging the wire into adirect engagement with the receptacle without using any interveningconducting elements. The body can be made in two sections, and thedisposing and bias means can be lugs integrally formed with one of thesections.

22 Claims, 5 Drawing Figures PATENTE LXQPW 3 735,330

SHEETEDFZ INVENTO R5 E W100 UFFERM /V ATTORNEY BACKGROUND OF THEINVENTION This invention relates to kinescope anode connectors and, moreparticularly, to a connector which urges the center conductor of ananode wire into direct engagement with the kinescope anode terminal.

Kinescopes (picture tubes) are a common component of electronic systemswhere a visual display is required, such as television, radar,oscilloscopes, etc. In general, they comprise an electron gun foremitting electrons, a screen that emits light from a particular pointwhen bombarded by the electrons at that point, a glass envelopeenclosing the before-mentioned elements in a vacuum, and a deflectionmeans for directing the emitted electrons to a selected point on thescreen.

To ensure that the emitted electrons hit the screen vided as part of thecircuits with which the kinescope I is used, and it applies thenecessary high voltage to a wire. To make electrical connection betweenthe anode terminal in the tube receptacle and the wire an anodeconnector is used.

Typical prior art anode connectors are made by crimping or soldering aclip to the center conductor of the high voltage anode wire. The cableand clip assembly is then disposed within a flexible insulated housing,typically made from rubber or plastic. The clip is then connected to theultor receptacle, so that the connection from the wire to the anode ismade indirectly through the clip. Since the clip is formed by bending awire or stamping sheet metal, it has sharp points or edges which canresult in corona discharges. If corona discharges do occur, as theyusually do in view of the high voltage involved, they not only adverselyaffect the displayed picture, but also can damage the housing throughand around which they occur. Therefore, with prior art connectors, anundue amount of attention is required in their design and manufacture inorder to reduce the number of the sharp points and edges on the clip,and to ensure the adequate insulation of the sharp portions of the clipthat inevitably occur.

Another problem with prior art connectors is that if an accidental forceis applied to the high voltage wire, this force will be applied to theclip which can jar loose from the terminal, thus breaking the connectionbetween the high voltage supply and the tube receptacle. Also, there aredifficulties if the connector is to be used with different terminalshaving different recess depths into the glass envelope of the kinescopebecause the clip is usually formed to engage a terminal having aparticular recess depth.

It is therefore an object of the present invention to provide aconnector that does not have any sharp points or edges so as to minimizeany possible corona discharges.

It is another object to provide a connector that does not apply anypossible force on the anode wire to an electrically conducting elementso that the occurrences of accidental disconnections are minimized.

It is still another object to provide a connector that is simple andeasy to manufacture and assemble.

It is still another object to provide a connector that can be used withreceptacles having varying recess depths.

SUMMARY In brief, these and other objects are achieved by having aconnector that urges a wire into a direct engagement with a terminal ina receptacle without using any intervening electrically conductingelements. To that end, the connector comprises a body that can besecured to the receptacle. The body receives and disposes the wireadjacent the terminal and has a bias means that resiliently urges thewire into direct engagement with that terminal. Preferably, the body isformed of mating upper and lower molded sections that are thereforeeasily assembled. The lower section can have integrally formed lugs, oneto receive and dispose the wire adjacent the terminal, the other todevelop a reaction force effective to resiliently urge the wire todirectly engage the terminal. Each of the lugs can have a ledge whichhooks into the receptacle so that any external forces applied to thecable will be transmitted to said receptacle and to said ledges and notto said wire, so that the wire-terminal relationship is not impaired. Ameans can be provided to urge said lower section away from thereceptacle so that said ledges securely engage said receptacle, therebypermitting said anode connector to be used with receptacles havingvarying recess depths.

To the accomplishment of the above, and to such other objects as mayhereinafter appear, the present invention relates to an anode connectoras defined in the appended claims and as described in thisspecification, taken in conjunction with the drawings in which:

FIG. 1 is a side elevational view of the connector of the presentinvention in place on a kinescope tube;

FIG. 2 is an exploded three-quarter perspective view of the connectorand the wire used therewith;

FIG. 3 is a bottom plan view of the connector when mounted on the anodereceptacle;

FIG. 4 is a side view partly in cross-section of the mounted connector;and

FIG. 5 is a front cross-sectional view along the line 5-5 of FIG. 41.

Referring to FIG. ll, there is shown the glass envelope of a kinescope10. A socket 12 is disposed at the end of the neck of kinescope 10 tomake connection to pins (not shown) that project therefrom, so thatexternal circuits can be connected to various internal electrodes thatare not a part of the present invention. Deflection coils 114 arewrapped around the neck so that by applying selected currents to them,the point of impact of an electron beam on the screen of kinescope 10can be controlled. A receptacle 60 (shown in FIGS. 4 and 5) is mountedon the kinescope envelope and includes a terminal 64 electricallyconnected in any appropriate manner to the tube anode or ultor. An anodeconnector 16 engages that anode receptacle 60. A high voltage powersupply 18 is electrically connected by means of a wire 20 to anodeconnector 16, and hence to the anode terminal 64 in receptacle 60, sothat a high volt age is applied to the kinescope anode by means of theconnector 16.

FIG. 5 shows the anode receptacle 60 recessed within the envelope of thetube 10. Receptacle 60 comprises an outer cup 62 and internal terminalledge 64 disposed therein, but projecting radially inwardly beyond theinner circumference of outer cup 62. Although not shown in the drawing,the terminal 64 is electrically connected to the ultor anode ofkinescope 10.

FIG. 2 shows that the connector 16 generally comprises an insulatingbody having upper and lower mating sections 22 and 24 each havingsubstantially identical and registering troughs 26 which, when thesections 22 and 24 are assembled, define a passage opening to theexterior of the body for receiving the high voltage anode wire 20, thatwire comprising an insulating sheath 49 and a central conductor 50. Tabs42 and 44 secure the connector 16 to the anode receptacle 60. Tab 42 hasa hole 48 that receives the center conductor 50 of wire 20 to dispose itadjacent the anode terminal 64. Tab 44 resiliently engages thereceptacle 60 opposite tab 44 so as to bias arm 42 toward terminal 64and thus cause conductor 50 to also engage the terminal 64, whereby adirect electrical connection is made.

Disposed within each of said troughs 26 are ribs 28 that, when theconnector 16 is fully assembled, grip the outer surface of wire 20,thereby providing strain relief therefor. The ribs 28 may be arranged inopposed pairs, the two ribs in lower trough 26 that are not visible inthe drawings being on the wall of said trough at positions oppositethose ribs that are visible. Disposed about said lower trough 26 thereis a U-shaped groove 30 that receives a correspondingly U-shaped tongue34 (FIG. 5) that is disposed about upper trough 26 of the upper section22. When the connector 16 is fully as sembled, a voltage barrier isformed about wire 20 by tongue 34 and groove 30 to suppress coronadischarges therefrom. Stand-off projections 38 are integrally formedwith the lower section 24, and are received by respective securing holes40 when the connector 16 is assembled. A pair of tabs 42 and 44 are alsointegrally formed with lower section 24 and extend from the bottom ofsaid section downwardly towards the anode receptacle 60. The tabs 42 and44 have ledges 43 and 45 respectively to grip corresponding surfaces ofthe anode receptacle 60, so that these tabs lock onto the receptacle andthus secure the entire body 16 thereto. Tab 42 is disposed beneath avertical passage 46 formed in section 24, and has a hole 48 that isaligned with said passage 46, so that the inner conductor 50 of wire 20can pass through passage 46 and then tab hole 48, and hence be disposedto engage the terminal part 64 of the anode receptacle 60 to which tab42 locks.

A slot 52 is located within lower section 24 between tabs 42 and 44.Since the portion of said section 24 defining the outer surface of slot52 is made of resilient material, slot 52 can be deformed by pressing athumb knob 54. Therefore, the distance between said tabs can bediminished so that they can be inserted into the anode terminal, andthen spring back to hold connector 16 in place. Resilient wings 56, 58located on opposite sides of lower section 24 engage the outer surfaceof the kinescope envelope and urge said section outwardly away from theglass envelope of the kinescope so that the connector 16 can be usedwith receptacles recessed into their respective envelopes to varyingdegrees.

To assemble the connector, center conductor 50 is inserted first throughpassage 46 and then through tab hole 48. Wire 20 is then bent in such afashion that its insulated part is received by the lower section trough26. Solvent cement is placed on the underside of tongue 34 by a sponge,and then upper section 22 is placed on top of lower section 24 withstandoff holes 40 receiving the standoff projections 38 respectively. Asupper section 22 is lowered towards lower section 26, groove 30 receivestongue 34 so that a voltage barrier is formed to minimize coronadischarges from wire 20. The solvent cement actually dissolves portionsof tongue 34 and groove 30, and upon drying forms a chemical bondbetween them that helps secure the two sections 22 and 24 together. Ribs28 grip the wire 20 to provide strain relief so that if the wire 20 ispulled, center conductor 50 will not come out of the holes 46 or 48. Asbest shown by that part of FIG. 4 that is in cross-section, the tops ofstandoffs 38 are hot or cold worked to form a rivet top 38'. Therefore,the two sections 22 and 24 are reliably and ruggedly secured togetherwith wire 20 therebetween by both the tops 38' and the bond between thegroove 30 and tongue 34.

To make the connection between the center conductor 50 and the anodeterminal 64, the tab 42 is inserted within the receptacle 60 so that itsledge 43 engages the underside of the terminal ledge 64. Therefore,center conductor 50 is disposed into direct contact with terminal 64,and hence is directly electrically connected thereto. Then, as bestshown in FIG. 4, thumb knob 54 is depressed, thereby deforming the outerwall defining slot 52, and permitting the insertion of tab 44 pastterminal ledge 66 and into cup 62. The knob 54 is then released, andsaid outer wall resiliently tries to return to its initial shape so thattab 44 presses against the right hand portion (as viewed in FIG. 5) ofthe receptacle 60, thus forcing tab 42 to the left and pressingconductor 50 against the anode terminal 64. If the tabs 42 and 44 arethemselves resilient, that resiliency will contribute to the sameresult. FIG. 4 best discloses how wings 56, 58 are at a slight dihedralangle with respect to the sides of lower section 24 and, therefore, urgeit away from the envelope of tube 10, thereby retaining tab ledges 43and 45 in hooked engagement with the terminal ledge 64. Any possibleaccidental forces that are applied to cable 20 will be applied throughribs 28 and lower section 24 to ledges 43 and 45 and not to centerconductor 50 or any contact clip as in the prior art. This ensures thatthe connector 16 will not work loose from the tube 10 and that thecenter conductor 50 stays in direct contact with the terminal 60.

It will be appreciated that the connector of the present invention issimple to make because it consists merely of two molded sections joinedwith a bared conductor therebetween. There is no need for using aconductive clip, much less bending that clip into coronaproducingshapes. By virtue of its construction it urges a conductor wire intodirect contact with a terminal no matter what the recess depth of thereceptacle for that terminal without making use of any kind ofintervening clip or conductor that can cause corona discharges. This isachieved in a rugged fashion, that will strong resist connector pulloutby accidental and extraneous forces.

Although the present invention has been disclosed with respect to but asingle embodiment, it is to be understood that many variations may bemade therein, all without departing from the spirit and scope of theinvention as defined in the following claims.

We claim:

ll. A connector for electrically connecting a cable wire to a receptaclehaving a terminal, said connector comprising a body having means thereonfor engaging said receptacle and detachably securing said connector bodythereto, a first means for receiving said wire; a second meansoperatively connected to said body for disposing said wire adjacent saidterminal; and a bias means operatively connected to said body forresliently urging said wire into engagement with said terminal; wherebysaid wire makes electrical connection with said terminal without usingany intervening conducting elements.

2. A connector for electrically connecting a cable wire to a receptaclehaving a terminal, said connector comprising a body having a first meansfor receiving said wire; a second means operatively connected to saidbody for disposing said wire adjacent said terminal; and a bias meansoperatively connected to said body for resiliently urging said wire intoengagement with said terminal; whereby said wire makes electricalconnection with said terminal without using any intervening conductingelements, wherein said body comprises making first and second sections,each of said sections having a trough for receiving said wire.

3. The connector of claim 2, further comprising means located withinsaid troughs for relieving strain within said wire.

45. The connector of claim 2, wherein each of said sections furthercomprises means adjacent said troughs for suppressing corona discharge.

5. The connector of claim 4, wherein said first section suppressingmeans comprises a tongue disposed about said first section trough, andwherein said second section suppressing means comprises a groovedisposed about said second section trough, said tongue being received insaid groove.

6. The connector of claim 2, in which said disposing means comprises apart integrally formed with one of said sections, said one of saidsections comprising a resilient means adapted to operatvely engage withand be deformed by said receptacle and effective to produce a biasingforce urging said part toward said receptacle terminal, said part beingadapted to engage said wire and urge it toward said receptacle terminal,said resilient means comprising said bias means.

'7. The connector of claim 6, in which said part is provided with a holefor receiving said wire.

6. The connector of claim 7, in which said resilient means comprises asecond part integrally formed with said one of said sections, saidintegrally formed parts extending from said section so as to beengageable with said receptacle.

9. The connector of claim 8, in which said one of said sections isprovided with an opening adjacent said resilient means, whereby saidreilient means can be moved with respect to said section proper.

10. The connector of claim 6, in which said resilient means comprises asecond part integrally formed with said one of said sections, saidintegrally formed parts extending from said section so as to beengageable with said receptacle.

11. The connector of claim 10, in which said one of said sections isprovided with an opening adjacent said resilient means, whereby saidresilient means can be moved with respect to said section proper.

12. The connector of claim 9, in which each of said parts comprises aledge section adapted to engage corresponding portions of saidreceptacle.

13. The connector of claim 6, in which each of said parts comprises aledge section adapted to engage corresponding portions of saidreceptacle.

M. An anode connector or the like comprising an insulated body adaptedto cooperate with a receptacle having a recess containing an electricalterminal, means operatively connected to said body, engageable with saidreceptacle, and effective to secure said body to said receptacle, anelement extending from said body and adapted to enter said recess, saidelement having a surface opposing said terminal, said body having aspace in which a cable having a conductor is adapted to be received andhaving an opening communicating between said space and said elementsurface through which opening said cable conductor is adapted to passand project, said projecting portion of said conductor then beinginterposed between said element surface and said receptacle terminal,and means operatively connected to said element and effective to urge ittoward said receptacle terminal, thereby to press said cable againstsaid terminal.

15. The connector of claim 14, in which said element is provided with anopening at the end of said surface remote from said body, the end ofsaid conductor being adapted to be received in said element opening.

16. The connector of claim 15, in which said element comprises part ofsaid securing means and is provided with a catch part remote from saidbody which makes locking engagement with said receptacle.

17. The connector of claim 14, in which said element comprises part ofsaid securing means and is provided with a catch part remote from saidbody which makes locking engagement with said receptacle.

18. The connector of claim 17, in which said element opening is formedin the catch part of said element.

19. The connector of claim 16, in which said element opening is formedin the catch part of said element and is in registration with said bodyopening.

20. The connector of claim M, in which said cable receiving spaceextends generally horizontally in said body and opens to the sidethereof, said body opening extending generally vertically.

21. The connector of claim 14, in which said body comprises a bottom andan upper part, said bottom part comprising said element, said opening,and at least a portion of said space, said space in said bottom partbeing open at its top, whereby said cable may be inserted thereinto viasaid open top, said cover part closing said upper space at its top, andmeans for securing said cover part on said bottom part.

22. The connector of claim 14, in which said urging means comprises saidbody being provided with a wall portion spaced from a body proper andresiliently urged away from said body proper, depending from said .sidewall portion, a second element depending from said body proper, one ofsaid elements comprising said element having said surface.

t l =1 =l1 i

1. A connector for electrically connecting a cable wire to a receptaclehaving a terminal, said connector comprising a body having means thereonfor engaging said receptacle and detachably securing said connector bodythereto, a first means for receiving said wire; a second meansoperatively connected to said body for disposing said wire adjacent saidterminal; and a bias means operatively connected to said body forresliently urging said wire into engagement with said terminal; wherebysaid wire makes electrical connection with said terminal without usingany intervening conducting elements.
 2. A connector for electricallyconnecting a cable wire to a receptacle having a terminal, saidconnector comprising a body having a first means for receiving saidwire; a second means operatively connected to said body for disposingsaid wire adjacent said terminal; and a bias means operatively connectedto said body for resiliently urging said wire into engagement with saidterminal; whereby said wire makes electrical connection with saidterminal without using any intervening conducting elements, wherein saidbody comprises making first and second sections, each of said sectionshaving a trough for receiving said wire.
 3. The conNector of claim 2,further comprising means located within said troughs for relievingstrain within said wire.
 4. The connector of claim 2, wherein each ofsaid sections further comprises means adjacent said troughs forsuppressing corona discharge.
 5. The connector of claim 4, wherein saidfirst section suppressing means comprises a tongue disposed about saidfirst section trough, and wherein said second section suppressing meanscomprises a groove disposed about said second section trough, saidtongue being received in said groove.
 6. The connector of claim 2, inwhich said disposing means comprises a part integrally formed with oneof said sections, said one of said sections comprising a resilient meansadapted to operatvely engage with and be deformed by said receptacle andeffective to produce a biasing force urging said part toward saidreceptacle terminal, said part being adapted to engage said wire andurge it toward said receptacle terminal, said resilient means comprisingsaid bias means.
 7. The connector of claim 6, in which said part isprovided with a hole for receiving said wire.
 8. The connector of claim7, in which said resilient means comprises a second part integrallyformed with said one of said sections, said integrally formed partsextending from said section so as to be engageable with said receptacle.9. The connector of claim 8, in which said one of said sections isprovided with an opening adjacent said resilient means, whereby saidreilient means can be moved with respect to said section proper.
 10. Theconnector of claim 6, in which said resilient means comprises a secondpart integrally formed with said one of said sections, said integrallyformed parts extending from said section so as to be engageable withsaid receptacle.
 11. The connector of claim 10, in which said one ofsaid sections is provided with an opening adjacent said resilient means,whereby said resilient means can be moved with respect to said sectionproper.
 12. The connector of claim 9, in which each of said partscomprises a ledge section adapted to engage corresponding portions ofsaid receptacle.
 13. The connector of claim 8, in which each of saidparts comprises a ledge section adapted to engage corresponding portionsof said receptacle.
 14. An anode connector or the like comprising aninsulated body adapted to cooperate with a receptacle having a recesscontaining an electrical terminal, means operatively connected to saidbody, engageable with said receptacle, and effective to secure said bodyto said receptacle, an element extending from said body and adapted toenter said recess, said element having a surface opposing said terminal,said body having a space in which a cable having a conductor is adaptedto be received and having an opening communicating between said spaceand said element surface through which opening said cable conductor isadapted to pass and project, said projecting portion of said conductorthen being interposed between said element surface and said receptacleterminal, and means operatively connected to said element and effectiveto urge it toward said receptacle terminal, thereby to press said cableagainst said terminal.
 15. The connector of claim 14, in which saidelement is provided with an opening at the end of said surface remotefrom said body, the end of said conductor being adapted to be receivedin said element opening.
 16. The connector of claim 15, in which saidelement comprises part of said securing means and is provided with acatch part remote from said body which makes locking engagement withsaid receptacle.
 17. The connector of claim 14, in which said elementcomprises part of said securing means and is provided with a catch partremote from said body which makes locking engagement with saidreceptacle.
 18. The connector of claim 17, in which said element openingis formed in the catch part of said element.
 19. The connector of claim16, in which said element opening is formed in the catch pArt of saidelement and is in registration with said body opening.
 20. The connectorof claim 14, in which said cable receiving space extends generallyhorizontally in said body and opens to the side thereof, said bodyopening extending generally vertically.
 21. The connector of claim 14,in which said body comprises a bottom and an upper part, said bottompart comprising said element, said opening, and at least a portion ofsaid space, said space in said bottom part being open at its top,whereby said cable may be inserted thereinto via said open top, saidcover part closing said upper space at its top, and means for securingsaid cover part on said bottom part.
 22. The connector of claim 14, inwhich said urging means comprises said body being provided with a wallportion spaced from a body proper and resiliently urged away from saidbody proper, depending from said side wall portion, a second elementdepending from said body proper, one of said elements comprising saidelement having said surface.